Merge branch 'output-md' into 'master'
authorMark Hansen <mark@markhansen.co.nz>
Fri, 19 Mar 2021 08:32:17 +0000 (08:32 +0000)
committerMark Hansen <mark@markhansen.co.nz>
Fri, 19 Mar 2021 08:32:17 +0000 (08:32 +0000)
Extract html_grammar.html to independent make rule

See merge request graphviz/graphviz!1853


Trivial merge